Runway marker for airports



FIG. 1 is a top plan view of a runway marker for airports showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a runway marker for airports, as shown and described. 